The 29-year-old singer wrote a dress that was a replica of Britney Spears‘ infamous jean dress from the 2001 American Music Awards. Riff Raff even wore a jean suit just like Justin Timberlake did!

“@britneyspears I’ll show u my best impression on the red carpet at the VMA’s tomorrow… Wait for it bb,” Katy wrote on Twitter that night before. She later added, “I must admit my outfit is a result of my love for nostalgia and my tumblr addiction #THISISHOWWEDOVMAS.”